Lubricating system



May 20, 1930. c. A. BACON LUBRICATINQ SYSTEM Fild April 25, 1925 2 Sheets-Sheet 1 )llT ass )hr cs:

C. A. BACON LUBRICAT'ING SYSTEM May 20, 1930.

v Filed April 23, 1925 2 Sheets-Sheet ,2

. I I I I Z? 1, I Z8" 7 I I I 1 INNTOR Patented May 20, 1930 UNITED STATES PATENT FOFFI enns'rnn A. BACON, or AUBURN,/'1\TEW YORK, ASSIGNOR T BOWEN r nonuc'rs con- .PORATION, or AUBURN, NEW Yomge CORPORATION or ew YORK LUBRIOATING strsrEM Applicationfiled April as, 1925. Serial No. 25,257. 1

, This invention relates to a new and improved tank and pump and more particularly to a combined tank and pump formed of pressed steel, and especially designed for 5 chassis lubrication. V

In a structure of this character in-which the pump cylinder is secured to the bottom of the .tank, as'by riveting, and the plunger or piston moves through the upper wall or cover of the tank, and the piston or plunger of necessity has a close fit in the bore of'the cylinder, it is, owing to variations in riveting and the general spring present in sheetmetalwork, found practically impossible to maintain accurate alignment of the iston with the pump cylinder, which is requlred if the piston is to move in the cylinder without sticking or jamming. g v

' One of the objects of this invention resides in an adjustable or floating'bearing which permits the piston to automatically align itself with the pumpcylinder to compensate for any ordinary variations existing in or produced by handling or'otherwise in the manufactured product. I v

.A further objectxresides in the-provision of. means in combination with the floating bearing or-button for preventingthe escape of oil from the bearing, and for wiping the piston to remove oil from its surface as a portion of the piston moves out ofthe tank on the return stroke. 7 p v i A further object resides in the provisions of means for preventin'g'the escape of lubricant throughthejoint between the cover and the body of thetan'k, 1 p

A further object resides inthe provision of a novel form of bracket forsecuring the tank and pump to a suitable support as an 40 automobile frame. v e

Other objects and advantages relate. to the details of the structureand' the parts thereof,

allas will more .fullyflapp ear ffrom the fol- I alowing' description,-taken in. connection with 3 the accompanylng drawings, in.wh1ch Figure .1 is a top plan View of the structure, with portionsbroken away and other portions shown in section. I v

V Figure 2 is a vertical section on line 22, Figure 1.

1 carried by the piston.

. cylinder -2.

Figure 3 is a sectional view'of the lower end'of the pump cylinder showingthe leads therefrom.

Figure is a viewof section of thesleeve member utilized for producing an oil-tight joint between the body and cover of the tank.

Figure 5 is an elevation of the tank showing the bracket secured in place.

' Figure 6 isa perspective view ofthe sleeve Figure 7 illustrates a modified form of floating button or bearing.

Thestructure as here illustrated comprises a tank consisting of a cover 14 and, a

cup-shape substantially cylindrical, tank body 1 having a substantially central openingin its bottom wall through which the reduced upper end portion of pump cylinder 2 extends, the inwardly project-y ing portion of which reduced end is riveted outwardly at 3 into contact with the ;in+ ner surface of the bottom wall of the tank body sothatin effect the wall of the tank is tightly and rigidly confined in a circumferential channel in the outer surface of the so that piston 5- has a very tight fit within thisportionof the bore of the cylinder, while the bore of the lower portion 50 may be The bore of cylinder 2 has its upper portion -4 accurately shaped and finished somewhat enlarged. to permit in the process 7 of manufacture the accurate finishing of the bore ofthepart without-excessive ex- I pendit'ure of time, labor and-material. The lower end of:cylinder 2 may, as'shown,

be externallythreaded for cooperation with an internally threaded two-way fitting 6, which may, as hereshown, have lubricant conveying tubes'-7- securedto it in any suitable manner, as'by tubular compression nuts -9%.J-' The lower end of the cylinder is internally threadedfor B eption of an externally. threaded headed plug 8 formed with a vertical passageway -1( leading to a lateral passageway '11 forming means of communication between the bore of cylinder 2. and the lubricant conveying tubes '-7," Screen -12 may l a 1 l l fi et d'SQ astofight y ggpqlhe me d be carried by the plug -8 in the manner shown when desired. 7 I

The piston or plunger 5 has its lower 7 end normally positioned within the upper 5 end of the cylinder 2, and in order to 7 permit flow of lubricant from tank'1j lnto the cylindemttheilower end of the'lpiston is-redueedin si-zeas by flattening itupon opposite sides, as illustrated. Thempistonm .ing '22 and re form iit after ithas-been reopened out bythe downstrokelotthe piston 10 5 extends ,upwardly through .an opening in the cover. '1l' and in order to permit the piston to automatically align itselfwith the bore of cylinder .2, this eopening-is made considerably larger than the d ameter v of-the piston, and is equipped with afloat-c ing button or bearing 15.'

.he at present we erred form' o'f thebuttonl as shown in Figure consists of a-cylindrical sleeve 16 ofconsiderably less diameter than "the opening -through the cover -'1 4' of the tank 1 the sleevebeing arranged -in the opening-=and having its fuppei edge formed with an -outwardly-extending flange 17 -andv=its lower -P0ft10n "formed withan outwardly eKtendi-ng flange theupper surface of; the cover let and its 4 inner edgebowed away from the "cover-and 'in contact witlr the: innersutface ofjfiange '17, whereby the tension 1 ofthe yannnlar V spring disk- "19]'' is' such; as tojfr'ictionally :maintain the'i floating bearing in any assumed mposition to prevent rattling; etc, a The outeren'd oif fl a'nge 'l8c i'sreturned inwardl so as toforman inwardly-project -"il8ezand fox nii-ng an inwardly openingcirg0 cular "I' 'gDOOVQ =or eha'nnelffor receiving the a-zouterhedge'oiiianiannnlar disk-shape packing olvgasket th-ronghwvhich-1 :tlie plunger V e+i5'-extends,\theopening through the packcingwbeing g'preierably' iofe approximately the V 5; 'same siz'eorslightly4smallerrthanizthe diam- ,pistone-rod-l mores thrqugh the -(packing: any

l 1 oil a clinging tofi-thesurface @of the .,rod is 1 4 As; shown, the. the pack ing'is'foflless diameterlthanthepexternaldi;

ain'etero'f thejpislton rod an'd Itlie .inn eriedge of the' packing Tis deformedgdow wardlyl as 1 I wiped .ofi hyl thepacliing and retained within Jeonthetankp r this portion of the packing is re-formed at each operation of the piston rod by means of +25 having a-beveled surface 26+ form- V ing atapered recess adapted to receive-the downwardly inclined inner edge of the pack rod. Preferably the enlarged head 25 is the tapered recess V26- to permit the es- -1ca-peiofianyzlubricant therefrom. The diameter-of the head -25 is approximately the same as orslightly -less"than the internal diameter of the flange '-2l". l

'It will be-obvious from this disclosure that the bearing described'is capable of automatically adjusting itself within'the'limits of the size-of the openingthrough the cover "14 under automatic actuation-by the piston-rod 5- in aligning itselfwith the bore 4 of cylinder Spring .5 1' islprovided su gi'oundingqthe piston '5 and confined between the'bottom of tank 1 and ,the head 25 of sleeve 'sogas'to nori -m-ally return thepiston to its .uppermostposition and-return it-insuch position ready for manualgactua-tion. V

For the purpose" 'of -securing-the cover forlned'with radial grooves 27 leading to i -'14' to the tankbody +1,' the outer sur face of the upper edge: -of-jthe tank' body is formed with a circular-groove,- and at v portions around its periphery the downwardly venting the escape of oilil between "the cover fiaiigechedge of; cover '1l"; is-pressed in "wardlyto form" indented "p arts 28 which seat in the cooperating-grooVei-n: the surface 5 of the tank body to permanently secure the V 17105 parts together, and .for the purpose'of pre-p with a beaded partin the "form' o f-an outd wardly extending flange i30i and laninclined upwardly and inwardlyj'extending refillingj the tank? from ,time; to time,;.; as, for

by' a threaded cap +321. 1 V

.Qinstance, filling "opening nornia'lly'ffclosed floating button is shown in thatrinstfladfof is niade use of, one flange o f saifd bar lying in and fitting the channel between the flanges 17 and 18, and the other flanges extending radially outwardly substantially parallel with the flange 18 and spaced from the flange 18 a'distance substantially equal to the thickness of the cover -l4 so that a channel is formed between the flanges 35 and 18+ adapted to receive the edge of the cover about the opening for the bearing, whereby floating or lateral sliding movements of the bearing is permitted within limits defined by the external diameter of the flange 3l and internal diameter of the Wall of the opening in the cover 14-.

For the purpose of supporting the tank in any suitable position, a bracket 36. of novel form is provided, andas perhaps best illustrated in Figure 5, is of substantially triangular conformation having two bolt openings 58 at its upper portion and a third bolt opening 58--- at its apex or lower portion. The bracket, as shown, is formed of a single piece of sheet metal cut and shaped to the configuration shown and spaced from and secured to the wall of the tank body by flanges -39- shaped to fit the outer wall of the tank body and secured thereto in any suitable manner, as by welding, or the like.

Integral inwardly bent flanges 4i0- are provided adapted to engage the heads of the bolts 41 so as to prevent their rotation.

Altho I have shown and described. a specific structure of combined tank and pump, and details thereof with particular reference to the specific structures of floating bearing, still I do not desire to restrict myself to the details of structures herein described as constituting at present perhaps preferred embodiments of my invention, as various changes and modifications may be made without departing from the spirit of the invention as set forth in the claims hereto appended.

I claim 1. A combined tank and pump comprising a receptacle and a pump cylinder secured thereto, a piston movable through a wall of the receptacle and in the pump cylinder, a bearing for said piston carried by the wall of the receptacle, slidably laterally in all directions with respect to said wall, and including spring means tending to maintain the bearing in any position.

I 2. A combined tank and pump comprising a receptacle including a cover having an opening therethrough, a pump cylinder secured to the receptacle, a piston movable through the opening in the cover and in said pump cylinder, and a floating bearing for the piston mounted in' the opening in the cover and comprising a sleeve of less diameter than the opening, and positioned in the opening and having outwardly extending flanges at its opposite ends, one Within and the other outside the cover to permit lateral sliding movement of the sleeve with respect to the cover.

3. A combined tank and pump comprising a receptacle including a cover having an opening therethrough, a pump cylinder secured to a the receptacle, a piston movable through the opening in the cover and in said pump cylinder, and a floating bearing for the piston mounted in the opening in the cover and comprising a sleeve of less diameter than the opening, and positioned in the opening and having outwardly extending flanges at its opposite ends, one within andthe other outside the cover to permit lateral sliding movement of the sleeve with respect to the cover, a return bent flange on the flange within the cover, and an annular gasket having its s inner edge gripping the piston and itsouter edge confinedin the channel formed between the flange within the cover and the return bent flange. i I Y a 4. A combined tank and pump comprising a receptacle including a cover having an opening therethrough, a pump cylinder secured to the receptacle, a piston movable through the opening in the cover and in said pump cylinder, a floating bearing for the piston mounted in the opening in the cover and comprising a sleeve of less diameter than the opening, and positionedin the opening and having outwardly extending flanges at its opposite ends, one within and the other vutside the cover to permit lateral sliding movement of the sleeve withrespect to the cover, a return bent flange 'onthe flange and comprising a sleeve of less diameter than the opening and positioned in'the opening 7 and having outwardly extending flanges at its opposite ends, one within and the other outside the cover, said flanges :spaced apart a distance greater than the thickness of the cover at the opening to forma circular outwardly opening channel and a disk seated in said channel and extending outwardly therefrom and'engaging one surface of the cover and held in said channel by one of said flanges, and spaced from the opposite flange a distance substantially equal to the thickness of the cover. i

6. A combined tank and pump comprising a receptacle including a cover having an mpemngItherethrOu'gh, a pum cylinder se- Vcured't'o the receptacle, a pistonmovable through the opening in the cover and ins'aid pump cylinder, afloating'bea-ring for the piston mounted in the opening in the cover and comprising a sleeir'e of less diameter than the opening and positioned in the opening and having outwardly extending flanges at its opposite ends, one Within and the'other outside the cover, and a disk formedof spring metal having its outer edge engaging the outersurface of the cover audits inner edge bowed away from the cover and engaging V the inner surfaceof the flange outside" 'th cover onsa'idsleeve. 7 I v 7 A comblned tank and pump comprising a receptacle includ ng-a cover having an 7 opening therethrough, a-pump cylinder secured to the receptacle; a piston 'inovab1e through theopening in the cover and in said pump cylinder, a floating bearing for the piston mounted in the'opening in the cover and comprising a sleeve of less diameter than the opening and positioned in the opening and having outwardl-y' extending flanges at its opposite ends, one within and the other outside the cover; to thereby form an outwardly opening circumferential channel, and anannular-disk having its inner edge seated in said' channel and its outer edge engaging the outer-surface of the cover and spaced from the flange Within the cover a distance substantiallyequal-tothe thickness of the cover. In Witness whereof I have hereunto setmy hand this 13th day of April-Q1925 CHESTER A. BACON. 

